IF you like a smart TV but not the smart features (but have no dumb alternative), then don't connect it to the Internet. Now it's just a dumb TV.
No TV tuner, no WiFi, no ethernet, no loudspeakers. Just a great quality display with a few HDMIs please.
They reduce it, because having one do-it-all device increases units/SKU and decreases the contribution of fixed costs to the minimum unit cost needed to break even, and competition prevents charging excessive premiums across most commodity models.
It wasn't until everything went flat screen where "TVs", computer monitors, video monitors became so interchangeable. However, there's really not many 72" computer monitors to fill up the space in my living room.
If it's displaying anything from the internet, then I don't think it's still a "dumb TV".
https://en.wikipedia.org/wiki/Program_and_System_Information...